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Excellence in High Voltage
LS Series Data Sheet
LS001, LS2.5, LS005, LS010,
LS015, LS020, LS030, LS050,
PRECISION HIGH VOLTAGE MODULES
Applications (1 Watt max)
See LT Series for 3 Watt
- Mass spectrometers
- Electron microscopes
- Nuclear instruments
- Photomultiplier tubes
- Microchannel plates
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Features
- 1kV, 2.5kV, 5kV, 10kV, 15kV, 20kV, 30kV, 50kV
- Highest Stability, Lowest Ripple, Lowest Drift
- Externally programmable or Internal control (option)
- Short circuit and flashover proof
- 24 hour burn in
- Low radiated magnetic field
- Positive, negative & remote reversible versions
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The LS Series sets a new standard for high voltage precision and stability. By optimising the Low Stress™ technologies used in our leading 10 Watt HP Series for 1 Watt applications, the new LS Series has less than 1ppm ripple, 10ppm/°C temperature coefficient, and 50ppm drift/hr throughout the range. Each of the units includes a differential control input. For 3W versions see our LT Famly.
To take full advantage of the performance available from the LS Range, they are initially only being made available to our OEM customers as application specific, custom optimised, modules.
All units are short circuit proof and use proven techniques to drive a high frequency oscillator and ferrite high voltage step-up transformer. These advanced power supplies build on Applied Kilovolts’ legendary reputation for reliability, being constructed from conservatively rated components with their reliability further enhanced by information gained over many years of field operation.
Available as positive or negative up to 50kV, and electrically reversible at voltages up to 30kV.
Please see the HPRZC range for zero crossing reversible (bi-polar) units.
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Electrical Specification
Positive & Negative Polarity Units
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| UNIT TYPE |
POLARITY |
OUTPUT |
RIPPLE AT FULL LOAD |
SIZE (mm) |
| LS001PIP010 |
POSITIVE |
10 volts to
1kV at 1mA |
2mV peak to
peak |
156x127x64 |
| LS001NIP010 |
NEGATIVE |
| LS2.5PIP010 |
POSITIVE |
10 volts to
2.5kV at 400uA |
3mV peak to peak |
156x127x64 |
| LS2.5NIP010 |
NEGATIVE |
| LS005PIP010 |
POSITIVE |
10 volts to
5kV at 200uA |
5mV peak to peak |
156x127x64 |
| LS005NIP010 |
NEGATIVE |
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LS010PIP010 |
POSITIVE |
20 volts to
10kV at 100uA |
10mV peak to peak |
156x127x64 |
| LS010NIP010 |
NEGATIVE |
| LS015PIP010 |
POSITIVE |
30 volts to 15kV at 66.7uA |
15mV peak to peak |
207x148x74 |
| LS015NIP010 |
NEGATIVE |
| LS020PIP010 |
POSITIVE |
50 volts to
20kV at 50uA |
20mV peak to peak |
207x148x74 |
| LS020NIP010 |
NEGATIVE |
| LS030PIP010 |
POSITIVE |
100 volts to 30kV at 33.3uA |
30mV peak to peak |
207x148x74 |
| LS030NIP010 |
NEGATIVE |
| LS050PIP010 |
POSITIVE |
200 volts to
50kV at 20uA |
50mV peak to peak |
TBD |
| LS050NIP010 |
NEGATIVE |
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Electrical Specification
Reversible Polarity Units
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| UNIT TYPE |
POLARITY |
OUTPUT |
RIPPLE AT FULL LOAD |
SIZE (mm) |
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REVERSIBLE |
±10 volts to ±1kV at 1mA |
2mV peak to peak |
163x152x71.5 |
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REVERSIBLE |
±10 volts to ±2.5kV at 400uA |
3mV peak to peak |
163x152x71.5
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REVERSIBLE |
±10 volts to ±5kV at 200uA |
5mV peak to peak |
163x152x71.5
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REVERSIBLE |
±20 volts to ±10kV at 100uA |
10mV peak to peak |
163x152x71.5
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REVERSIBLE
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±30 volts to ±15kV at 66.7uA
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15mV peak to peak
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233x204x114
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REVERSIBLE |
±50 volts to ±20kV at 50uA |
20mV peak to peak |
233x204x114
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REVERSIBLE |
±100 volts to ±30kV at 33.3uA |
30mV peak to peak |
233x204x114
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See HPZ data sheet
for continuously variable zero crossing power supplies |
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| INPUT VOLTAGE: |
+24 volt d.c. ±10% at less than 0.3A. Negative input terminal common to HV earth return. |
| OUTPUT VOLTAGE: |
See tables above. |
| LINE REGULATION: |
Less than 2ppm of maximum voltage for input changes of 1 volt. |
| LOAD REGULATION: |
Less than 10ppm for load changes from 10% to 100%. (Measured at maximum voltage). |
| OVERLOAD PROTECTION: |
Flashover and short circuit proof. Re-entrant current limit. |
| TEMPERATURE COEFFICIENT: |
<10ppm/°C |
| DRIFT: |
<50ppm per hour (<0.005%)
<100ppm per 8 hours (<0.01%) |
Measured at constant input voltage, load current & ambient temperature after 0.5 hour warm up. |
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| CONTROL: |
10V analogue signal. (0 to +10V gives zero to maximum output, tolerance ±2%). Input impedance > 100Kohm.
EXTERNAL potentiometer = Option Code PP INTERNAL pote ntiometer = Option Code FP |
| READOUT: |
Voltage monitor: 0 to +10V represents zero to maximum output, tolerance ±2% Zout LS=10k, Zout LSR=0k
Precision Current Monitor: 0 to 10V represents zero to 100% o/p current, tolerance ±2%, Offset ±0.1% of FS.Zout 10k |
| OPERATING TEMPERATURE: |
0°C to +50°C |
| STORAGE TEMPERATURE: |
35°C to +85°C |
| R.F.I.: |
Steel case for low radiated magnetic field.
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Mechanical Specification
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FIXINGS:
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M3 Blind Fasteners front and rear. (10mm deep) |
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OUTPUT:
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By 1 metre screened cable, or optional integrated high voltage connector N.B. Reducing the cable length may increase the ripple voltage. |
| INPUT CONNECTOR: |
15 way D-type
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| e.g. Order Code: LS010NIP010 = negative 10kV unit LS005PPP010= +ve 5kV unit for control by External Pot |
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